baber/WOPTO huggingface dataset:
Patent DE-3315596-A1 (DE)
Title: Use of polyurethane prepolymers as flocculating agents
Inventor: HORACEK HEINRICH DR
IPC: C08G18/48
Filed: 1983-04-29
Abstract: Use of polyurethane prepolymers composed of a) polyetherpolyols, which contain ethylene oxide units and propylene oxide units in the weight ratio 95:5 to 70:30 and which have a molecular weight from 500 to 10,000, b) di- and/or polyisocyanates and, possibly, c) chain extenders, which can be converted to the salt form or already occur in the salt form, as flocculating agents. The flocculating agents give stable flocs and do not contaminate the waste water.
Patent DE-3316727-A1 (DE)
Title: Detachable connecting arrangement for at least two optical fibres
Inventor: RODE MANFRED DIPL ING
IPC: G02B6/38
Filed: 1983-05-07
Abstract: The invention relates to a cost-effective detachable connecting arrangement for optical fibres, which is particularly suitable for occasional coupling and/or decoupling. This operation requires no tools, nor any adjusting operations.
Patent DE-3317979-A1 (DE)
Title: Pressure-control arrangement
Inventor: SCHOPPER BERND
IPC: B60T11/34
Filed: 1983-05-18
Abstract: A pressure-control arrangement, in particular for a hydraulic vehicle-brake system, is proposed in which a valve device, closing at a predeterminable operating pressure, and a non-return valve are provided in a housing (1) between inlet space (3) and outlet space (5). The non-return valve opens when there is a pressure gradient from the outlet space to the inlet space. A valve seat (13) is arranged on a valve sleeve (12). The valve piston (20), with a valve-closing member (21) arranged on it, passes through the valve sleeve (12). The valve piston (20) is acted upon in the opening direction by a control force F. The valve sleeve (12) can be displaced against a sealing element (15) which is arranged in a fixed position relative to the housing (1) between peripheral surfaces of the valve sleeve (12) and the housing (1). In this pressure-control arrangement of simple construction, with decreasing input pressure the output pressure also decreases before the pressure balance is reached. <IMAGE>
Patent DE-3319198-A1 (DE)
Title: Projection screen
IPC: G03B21/58
Filed: 1983-05-27
Abstract: In a projection screen which winds up automatically and has a device for regulating the tension of the screen in the extended state and for relaxing the tension in the wound-up state, an inner tube passing all the way through and rigidly connected to the housing of the projection screen is provided, and the locking devices for regulating the tension and winding up the screen are integrated with one another and can be actuated independently of the turning knob.
Patent DE-3320464-A1 (DE)
Title: Single- or multi-stage hydraulic cylinder
Inventor: NEUMEISTER OTTO
IPC: F15B15/16
Filed: 1983-06-07
Abstract: The hydraulic cylinder has a cylinder tube (1) and a piston rod (7) which are guided on one another in a sliding manner with their peripheral surfaces (8 and 9). A retention groove (20) in the one peripheral surface (9), a stop groove (25) in the other peripheral surface (8) and a stop ring (17) which springs radially inwards and can be fully accommodated by the retention groove (20) form an extension stop for the piston rod. The extension stop automatically comes into effect as soon as the stop groove (25) is extended into axial alignment with the retention groove (20). The stop ring (17) then penetrates under its spring preloading with a part of its cross-sectional profile into the stop groove (25). The latter has a sloping side flank (26) which presses the stop ring (17) back into the retention groove (20) during the axial retraction movement. In a multi-stage hydraulic cylinder, corresponding additional extension stops and if need be retraction stops acting in a corresponding manner are provided. <IMAGE>
Patent DE-3321815-A1 (DE)
Title: Sensor for scarcely flowing materials
Inventor: KUEBLER HEINRICH
IPC: G01F25/00
Filed: 1983-06-16
Abstract: The stirrer 20 of a sensor for scarcely flowing materials is driven in a rotating manner by an electric motor and braked when material is at a standstill. In the braked state, the stirrer is driven in an oscillating manner. 
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Patent DE-3322539-A1 (DE)
Title: Process for non-polluting disposal of residual products from coal-fired power stations
Inventor: HOELTER HEINZ DIPL ING
IPC: E02D17/18
Filed: 1983-06-23
Abstract: The residual products arising in the flue gas desulphurisation especially of coal-fired power stations are obtained in greater quantities than are used at the moment for cement production, construction of black road surfaces and similar fields of use. For disposal from power stations, it is therefore proposed to mix the ash, preferably in the still hot state, with the moist CaSO4 product and to move it to cavities which are to be backfilled by a tipping method or pneumatically, preferably dredged pits. The CaSO4 mixture can also be dried by waste heat from the power station and be used, mixed with ash, for other purposes.
Patent DE-3325426-A1 (DE)
Title: Debris chute with air outlet apertures
Inventor: VOSS KURT-HEINZ DIPL ING
IPC: F16L55/07
Filed: 1983-07-14
Abstract: A debris chute for the downward conveyance of mineral debris substantially consists of a pipeline made up of lengths of pipe provided with a grinding insert. In this pipeline, expansion lengths in the form of a socket pipe surrounding a pipe length are arranged at intervals. In order to avoid the turbulence of the mineral debris which customarily occurs in such a debris chute, and the associated wear, which is generated especially by the counterpressure of the air built up in the pipeline, provision is made for the socket pipes (3) of the annular space (5) formed with a pipe length (4) to have air outlet apertures (6). <IMAGE>
Patent DE-3328464-A1 (DE)
Title: Injector for contrast medium
Inventor: HOFMANN JENS
IPC: A61M31/00
Filed: 1983-08-06
Abstract: The injector for contrast medium for retrograde urethrography and for catheterless infusion urethrocystography of the male urethra and bladder comprises an injector housing (10) having a reception cylinder (11) for the body of the penis which is provided with an elastic rolling sleeve (12) which can be pulled onto the body of the penis in order to effect sealing of the injector housing (10) pushed onto the body of the penis for examination purposes, a syringe housing (30) firmly mounted inside the injector housing (10) forming a gap relative to the injector housing wall with an injector tip (31) for reception of a contrast medium-drawing cannula and a longitudinally displaceable syringe piston (40) having a longitudinal channel (41) extending through the piston to the injector tip (31) and provided with a device (43), which can be closed with a removable covering cap (42), for connection of an infusion device to the contrast medium injector (100), and a suction piston (20) longitudinally displaceable on the syringe housing (30) and having a suction and sealing ring (21) for generating a vacuum in the injector housing (10) and a device locking the suction piston (20) in any position (Fig. 2). <IMAGE>
Patent DE-3329482-A1 (DE)
Title: Method and apparatus for making connections of equal resistance to workpieces
Inventor: OTTO KLAUS
IPC: B23H9/02
Filed: 1983-08-16
Abstract: The invention relates to a method and an apparatus for making connections of equal resistance to workpieces which are intended for electrochemical machining by means of an EC generator, in particular for sharpening and tapering the pins of multiway plug connectors. In the novel method, connection is made to the workpieces electrolytically, and the electrolyte (11) provided for the electrochemical machining is passed through a metallic channel (12). The workpiece batches to which connection is to be made are immersed in the electrolyte without metallic contact with the anodically polarised channel (12). The metallic channel (12) comprises a double U-shaped profiled section embedded in a plastic part (13). The plastic part (13) has electrolyte inlet and outlet bores (14, 15) at the ends. Terminal strips (16, 17) are brought out at the side of the plastic part (13). <IMAGE>
Patent DE-3332561-A1 (DE)
Title: Process for stabilising emulsions
Inventor: MUELLER WOLFGANG PROF DR
IPC: A01N59/20
Filed: 1983-09-09
Abstract: In order to reduce the premature ageing of drilling and cutting emulsions, a process for the treatment of oil/water-based emulsions is proposed in which at least one copper electrode and a counter-electrode are arranged in the emulsion and copper ions are introduced into the emulsion from the copper electrode connected as the anode by appplying a direct voltage, which is preferably below the gas-evolution voltage of the aqueous phase of the emulsion.
Patent DE-3337853-A1 (DE)
Inventor: DETTERBECK MAX
IPC: H01B13/00
Filed: 1983-10-18
Abstract: In a device for automatically looping a thread about a bundle of wires to form a continuous crocheted tying structure, a camming mechanism is provided for limiting the tying cycles to two and for adding a plurality of knotting cycles. A cutting knife and an intercept needle are reciprocatably mounted to the housing of the device and are shifted by a pneumatic cylinder under control of the camming mechanism. The knife cuts the thread after the formation of a plurality of knot loops, while the intercept needle catches the thread and holds it for the next work operation.
Patent DE-3341009-A1 (DE)
Title: Releasable non-return valve
Inventor: PODSCHWADEK HERMANN DIPL ING
IPC: F15B13/01
Filed: 1983-11-12
Abstract: Without the need for complicated control and complex equipment, a non-return valve is designed as a double-releasable non-return valve in which the control piston is of a two-piece design. The first lower component piston is connected to the release line, and the second upper component piston is connected to a release connection line and via the latter to the advancing cylinder. Active drawing can thus take place as before via the first component piston, whereas passive drawing of the working cylinder is obtained when the advancing cylinder and thus at the same time the upper component piston are accordingly acted upon, so that the advancing cylinder can perform its working stroke directly after pressure relief of the working cylinder without unnecessarily larger quantities of pressure medium being displaced from the working cylinder. <IMAGE>
Patent DE-3345736-A1 (DE)
Title: Circuit arrangement for operating an electrical apparatus having an accumulator supply source
Inventor: RADUCANU DAN CORNELIU
IPC: H02J7/02
Filed: 1983-12-17
Abstract: A circuit arrangement for operating an electronic apparatus which can be operated from a DC or AC voltage network from 9 to 270 V as well as independently of a network contains an electronic switched-mode power supply for charging an accumulator and/or for supplying an electrical load, preferably a DC motor. A control and regulating circuit which is connected to an apparatus switch charges the accumulator, when the apparatus switch is opened and the DC or AC voltage network is connected, with a rapid or continuous charging current, depending on the accumulator voltage and/or the accumulator temperature. When the apparatus switch is closed and the DC or AC voltage network is connected, the electrical load is supplied with a constant voltage while, when the switch is closed but the DC or AC voltage network is not connected, the electrical load is supplied with a constant voltage as far as a minimum accumulator voltage, and the electrical load is disconnected when the accumulator voltage falls below the minimum.
Patent DE-3347881-A1 (DE)
Title: Set of building elements set to be laid mechanically by means of a lifting device
Inventor: GANDLGRUBER JOSEF
IPC: E01C19/52
Filed: 1983-03-22
Abstract: In order to produce a building element set of large area, which is suitable for mechanical laying and the building elements of which can have any form with regard to shape and surface, each of the building elements (12) of the building element set is equipped with grooves or channels which extend over its entire width or length and which are arranged and aligned in such a manner that in each case the grooves or channels of a building element row are flush with one another for positive engagement or support from below by bars or supports of the lifting device. <IMAGE>
Patent DE-3400521-A1 (DE)
Title: Single-leaf tunnel support and method of producing it
IPC: E21D11/10
Filed: 1984-01-10
Abstract: The invention relates to a single-leaf tunnel support, in particular for traffic tunnels, consisting of a concrete lining with an essentially circular inner cross-section and a sealing skin. A reliably sealed-off and simple-to-produce tunnel support is distinguished by the fact that the sealing skin is a metallic diaphragm bearing against the inner surface of the concrete lining.
Patent DE-3402401-A1 (DE)
Title: Bearing arrangement, especially engine bearing for motor vehicles
Inventor: BEER WILHELM ING GRAD
IPC: F16F7/108
Filed: 1984-01-25
Abstract: In an engine bearing composed of a rubber-metal component, a counter force, by means of which any resonance of the engine is counteracted, is to be produced in the event of a force caused by unevenness of the roadway and acting on the chassis. For this purpose a core composed of solid material is arranged between two parts of elastomer material, which are each connected to a rigid outer part connecting with the engine or the chassis, which core performs an oscillation corresponding to the oscillation frequency of the engine and acting approximately transversely to the engine oscillation and is so formed in relation to the outer parts that in one of the directions of oscillation its distance from the outer parts is reduced, increasing the spring rate of the bearing arrangement.
Patent DE-3405480-A1 (DE)
Title: Method and device for transporting leather
Inventor: CIECIERSKI WOLF
IPC: C14B1/62
Filed: 1984-02-16
Abstract: To transport leather which is to be treated and finished, the leather is positioned without folds on an endless backing belt, the backing belt with the leather is wound into a reel, the reel is advanced to the corresponding processing machine, the start of the reel is fixed to the transfer point, the reel is unwound, the leather on the backing belt is processed in the processing machine and the backing belt with the leather is subsequently wound up again and processed further, as appropriate.
Patent DE-3407715-A1 (DE)
Title: System for controlling traffic on unlit and/or lit roads
IPC: G08G1/09
Filed: 1984-03-02
Abstract: A system for controlling traffic on unlit and/or lit roads is described. To produce a system of this type which is intended to provide up-to-the-minute information on unforeseeable exceptional situations on locally narrow, restricted stretches of road and thereafter to control traffic events in good time and effectively, while satisfying stringent road safety requirements at comparatively low cost, it is at least provided that at least one interruptible signal wire or the like carrying a quiescent electric current is laid above and alongside in the peripheral area of the roads for connection to at least one fixed transceiver station, that the traffic signal device(s) is/are controlled by this transceiver station, and that radiotelephone links can be set up between this station and the mobile transceiver stations via the signal wire or the like and wireless radiotelephone links can be set up between the mobile transceiver stations.
Patent DE-3410178-A1 (DE)
Title: Process and device for track control
Inventor: TAKEUCHI MOTOHIKO
IPC: G11B15/467
Filed: 1984-03-20
Abstract: For track control in the playback mode of a video tape recorder on the basis of pilot signals which have at least four different frequencies f1, f2, f3 and f4 and are recorded together with information signals on successive tracks of a recording carrier in a predetermined cyclical sequence, the frequencies corresponding to the relationship (f1-f2) : (f2-f3) : (f3-f4) = A : B : A, two differential-frequency signal components, which in each track have a predetermined constant frequency in each case, are determined between two pilot signal components, which are extracted from the two neighbouring tracks of a track just played back, and in each case a corresponding reference signal of four reference signals. The frequencies of the reference signals correspond to the frequencies of the pilot signals, but the latter have a different cyclical sequence than that of the reference signals. The difference between the differential-frequency signal components is determined in order to obtain a track controlling signal, the polarity and level of which corresponds to a track error.
Patent DE-3419963-A1 (DE)
Inventor: SCHUELE PETER
IPC: F02B75/02
Filed: 1984-05-29
Abstract: A four-stroke combustion engine with at least one combustion chamber, controls for the intake and exhaust and a device for bringing gases from an exhaust-gas pipe back into the combustion chamber, characterized by the fact that an installation is provided for the momentary opening of the exhaust control (14, 42) which opens the exhaust control during the lapse of time between the opening of the intake control (10) and the ignition. A single and effective construction is possible.
Patent DE-3422022-A1 (DE)
Title: Retaining device for hoses
Inventor: MILANI FRANCESCO
IPC: A61G7/05
Filed: 1984-06-14
Abstract: The retaining device is intended to tidy up the many hoses and cables which are necessarily present between the patient and the gas supply. These hoses and cables frequently run in a confused manner through one another, cross one another and lie around in a confused manner. The retaining device for hoses, according to the invention, creates the possibility of suspending these hoses and cables in a tidy manner. For this purpose, it has devices from which said hoses and cables are suspended. It is held in a captive manner on the hose, in a retaining tube. For mounting on a stable base, the possibility exists for mounting on the known wall rail or, by retaining pins, in the wall plug socket.
Patent DE-3425151-A1 (DE)
Inventor: ROSE DAVID DR
IPC: C07D295/14
Filed: 1984-07-07
Abstract: Hair coloring preparations containing substantive hair dyes corresponding to the following general formula   <IMAGE>   in which A is an SO3H group or a COOH group, and R1 and R2 are hydrogen or other substituents, show high fastness properties and favorable toxicological properties. The substantive hair dyes are preferably present in the hair coloring preparations in a quantity of from 0.01 to 5.0% by weight, optionally in conjunction with known oxidation hair dye precursors.
Patent DE-3426360-A1 (DE)
Title: Magnetic-field sensor
Inventor: POPOVIC RADIVOJE DR ING
IPC: G01R33/06
Filed: 1984-07-17
Abstract: The magnetic-field sensor having a mobile, spatially bounded charge carrier region comprises a substrate, an epitaxial layer (2) grown thereon and a plurality of parallel semiconductor layers indiffused at the surface into the epitaxial layer (2), of which semiconductor layers a central elongated first semiconductor layer (4) is disposed between a likewise elongated second semiconductor layer (5) and two short sensor layers (6a, 6b). On that side of the first semiconductor layer (4) on which the sensor layers (6a, 6b) are located, a short parallel trigger input layer (7) is additionally indiffused at the surface into the epitaxial layer (2). The first and second semiconductor layers (4, 5) have an open, non-annular shape. The sensor layers (6a, 6b) are disposed at approximately the same level as a respective end of the first semiconductor layer (4) and the trigger input layer (7) at approximately the same level as the centre of the semiconductor layer (4). <IMAGE>
Patent DE-3428783-A1 (DE)
Title: Process for producing reformer feed and fuel oil or diesel oil from coal
Inventor: DOEHLER WERNER DIPL CHEM DR
IPC: F02B3/06
Filed: 1984-08-04
Abstract: In this process for producing reformer feed and fuel oil or diesel oil from coal at elevated pressure and elevated temperature by liquid-phase hydrogenation with coupled gas-phase hydrogenation, pulverised coal, if appropriate with the addition of catalytically active substances, is pasted with a pasting oil and first subjected to the liquid-phase hydrogenation and, after removal of a solids-containing residue fraction and, if appropriate, after separating off a fraction serving as pasting oil and after cooling, a product stream is recovered from the exit stream from the liquid-phase hydrogenation, and this is subjected to gas-phase hydrogenation for further processing. For the purpose of lowering the operating pressures required in the gas-phase hydrogenation to about 50-200 bar and reducing the hydrogen consumption, the total hydrogen requirement of the liquid-phase and gas-phase hydrogenations is initially introduced into the gas-phase hydrogenation as fresh hydrogen which is largely free of the interfering components present in a circulating-gas system of the coal hydrogenation, and the exit gas mainly containing unconverted hydrogen is then added to a circulating gas in the liquid-phase hydrogenation.
Patent DE-3429526-A1 (DE)
Title: Boiler
Inventor: KHUDA IVAN TRIFONOVIC
IPC: F22B37/20
Filed: 1984-08-10
Abstract: Situated in the gas flue (1) of the boiler are multiple heating surfaces (2) for the heated medium. Each heating surface (2) is formed by a number of interconnected U-shaped pipes (3) and is provided with a strip for its fastening on the side wall (4, 4a) of the gas flue (1). The strip is arranged on the bent end of the pipe (3), which is situated in the immediate vicinity of the side wall (4, 4a). The strip (9) is fastened rigidly with one end (9a) on the bent end of the pipe (3) and fastened rigidly with the other end (9b) on the side wall (4, 4a) of the gas flue (1) on the outside thereof. <IMAGE>
Patent DE-3430177-A1 (DE)
Title: Vorrichtung zur nivellierung eines ackers o.dgl.
Inventor: JENSEN FINN ULRIK HANSEN
IPC: A01B35/28
Filed: 1984-08-16
Abstract: Mit Hilfe eines Gerätes zur Nivellierung der Erdoberfläche eines Ackers, einem sogenannten "Ackerfurchenglätter", wird die Erdoberfläche von höheren Bereichen seitlich verlagert, und zwar durch Ringe von rotierenden Messern (7, 7'), die in Lagerungen (5) eingelagert sind und die durch Arme (4) am Tragrahmen (1) hängen. Diese Arme (4) erstrecken sich unter den Lagerungen (5) und im wesentlichen tangential davon, um nicht Pflanzenrückstände (Stroh, Stengel und Wurzelwerk) aufzufangen, die von den beiden Messerringen (7, 7') mitgetragen werden, die an den beiden Seiten der Tragarme entlangschleifen.
Patent DE-3434560-A1 (DE)
Title: Method for monitoring and optimising ultrasonic baths
Inventor: RASKE HANS
IPC: G01H3/00
Filed: 1984-09-20
Abstract: For the purpose of optimising and monitoring ultrasonic baths (USB), spatial and temporal periodic fluctuations of the sonic pressure are measured electrically as an important operating parameter, the measurement of the sonic pressure being effected by at least one pressure pickup, which is hermetically encapsulated in a pressure-pickup housing (DAG1; DAG2) and whose active measuring surface is coupled to a housing part of the pressure-pickup housing (DAG1; DAG2) which acts as a membrane (M1; M2). The pressure probes thus constructed can then be designed to be straight or angled, depending on the position of the ultrasonic transmitter (UG1; UG2). <IMAGE>
Patent DE-3438970-A1 (DE)
Title: Device for loosening bulk materials, in particular feedstock, in a funnel for bulk materials
Inventor: EICHHOLZ HEINZ
IPC: A01F25/20
Filed: 1984-10-24
Abstract: A device for loosening bulk materials, in particular feedstock, in a funnel for bulk materials, which device consists of a flat or three-dimensional grid (1) or the like which is arranged more or less vertically in the funnel (6), has elastic intermediate members (2) and, at its lower end, can be set in approximately vertical motion. <IMAGE>